#PROG: ALIGNMENT QUALITY METRICS
2D
3D
- Unmapped: Not mapped reads.
- Multimapping: Reads mapping multiple genome sites (different genomic features).
- Ambiguous: Reads mapping overlapping exons/genes (same strand for the 'stranded' counts column and opposite/same strand for the 'unstranded' counts column).
- noFeature: Reads not mapping any feature (exon). Most of them are reads mapping intronic sites.